package lslforge.editor;

import org.eclipse.jface.action.IAction;
import org.eclipse.jface.action.IMenuManager;
import org.eclipse.jface.action.IToolBarManager;
import org.eclipse.ui.IActionBars;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.actions.ActionFactory;
import org.eclipse.ui.ide.IDEActionFactory;
import org.eclipse.ui.part.MultiPageEditorActionBarContributor;
import org.eclipse.ui.texteditor.ITextEditor;
import org.eclipse.ui.texteditor.ITextEditorActionConstants;

/**
 * Manages the installation/deinstallation of global actions for multi-page editors.
 * Responsible for the redirection of global actions to the active editor.
 * Multi-page contributor replaces the contributors for the individual editors in the multi-page editor.
 */
public class LSLMultiPageEditorContributor extends MultiPageEditorActionBarContributor {
	private IEditorPart activeEditorPart;
//	private Action sampleAction;
	
	/**
	 * Creates a multi-page contributor.
	 */
	public LSLMultiPageEditorContributor() {
		super();
		createActions();
	}
	
	protected IAction getAction(ITextEditor editor, String actionID) {
		return (editor == null ? null : editor.getAction(actionID));
	}
	
	/* (non-JavaDoc)
	 * Method declared in AbstractMultiPageEditorActionBarContributor.
	 */
	@Override
	public void setActivePage(IEditorPart part) {
		if (activeEditorPart == part) return;

		activeEditorPart = part;

		IActionBars actionBars = getActionBars();
		if (actionBars != null) {
			ITextEditor editor = (part instanceof ITextEditor) ? (ITextEditor) part : null;

			actionBars.setGlobalActionHandler(ActionFactory.DELETE.getId(), getAction(editor, ITextEditorActionConstants.DELETE));
			actionBars.setGlobalActionHandler(ActionFactory.UNDO.getId(), getAction(editor, ITextEditorActionConstants.UNDO));
			actionBars.setGlobalActionHandler(ActionFactory.REDO.getId(), getAction(editor, ITextEditorActionConstants.REDO));
			actionBars.setGlobalActionHandler(ActionFactory.CUT.getId(), getAction(editor, ITextEditorActionConstants.CUT));
			actionBars.setGlobalActionHandler(ActionFactory.COPY.getId(), getAction(editor, ITextEditorActionConstants.COPY));
			actionBars.setGlobalActionHandler(ActionFactory.PASTE.getId(), getAction(editor, ITextEditorActionConstants.PASTE));
			actionBars.setGlobalActionHandler(ActionFactory.SELECT_ALL.getId(), getAction(editor, ITextEditorActionConstants.SELECT_ALL));
			actionBars.setGlobalActionHandler(ActionFactory.FIND.getId(), getAction(editor, ITextEditorActionConstants.FIND));
			actionBars.setGlobalActionHandler(IDEActionFactory.BOOKMARK.getId(), getAction(editor, IDEActionFactory.BOOKMARK.getId()));
			actionBars.updateActionBars();
		}
	}
	private void createActions() {
//		sampleAction = new Action() {
//			@Override
//			public void run() {
//				MessageDialog.openInformation(null, "LSLForge", "Sample Action Executed");
//			}
//		};
//		sampleAction.setText("Sample Action");
//		sampleAction.setToolTipText("Sample Action tool tip");
//		sampleAction.setImageDescriptor(PlatformUI.getWorkbench().getSharedImages().getImageDescriptor(IDE.SharedImages.IMG_OBJS_TASK_TSK));
	}
	public void contributeToMenu(IMenuManager manager) {
//		IMenuManager menu = new MenuManager("Editor &Menu");
//		manager.prependToGroup(IWorkbenchActionConstants.MB_ADDITIONS, menu);
//		menu.add(sampleAction);
	}
	public void contributeToToolBar(IToolBarManager manager) {
//		manager.add(new Separator());
//		manager.add(sampleAction);
	}
}
